Failed to connect, everything working fine b4

As the title says it, I got my server working and my friend connected.

No problem. but i shut down my server about 2 hours ago and when i start the server.bat, everything still reads it ok for go. Here comes the problem, Login-ok
neweathena map-ok Char select- ok , Click ok to go in the game and about 7 seconds later message pop-up says "failed to connect to server" i didnt mess with the charIP neither Map IP. Once i got the IP correct so that my friend could play I didn't mess around with it since then. So that's my problem. Everything has a green light for go, but when i try to login to the server, it fails. Any help is appreciated.

_KazumA_ThE_ShelL_BulleT_

Do you have a dynamic IP? If you do, your WAN IP changes on you...

Nvm i fixed it by updating aThena SVN. but now i have new problem. Friend connected to my server perfecty, but i cant see him. Its like he is invisible, yes i made him admin but its not the @hide , both of us made sure that invisible was turned off but he is still invisible, can anyone help? Also i would like to know how to update the server becuz
some items i create crashes the game, same with the jobs. if anyone can point me in the right direction, i thank you.

I've never encountered the invisiblity thing, but I think it has to do with the sclientinfo.xml. Just mess around with your friend's settings in it until you can see him.

As for the items, it's not your server, it's your client. Update it. And even then you probably won't be able to see all the items. It's a pain in the ass, I know, but you'll just have to live with it :\